code: def add_coords(self, coordinates, coords):
      sub_lanes = []
      for j in range(self.points_nums):
          y_lane = self.ori_shape[0] - 10 - j * self.y_pixel_gap
          x_lane = coords[j] if coords[j] > 0 else -2
          sub_lanes.append([x_lane, y_lane])
      coordinates.append(sub_lanes)
  
file_path: PaddleHub/modules/image/semantic_segmentation/bisenet_lane_segmentation/lane_processor/get_lane_coords.py
imports: import cv2
  import numpy
label_desc: Use image node_id 7 for calling the LaneProcessor obj's underlying member method code with example usage: obj.add_coords(coordinates, coords) without return types